WAVELENGTH CONVERSION DEVICE AND MANUFACTURING METHOD THEREOF

1 . A wavelength conversion device, comprising:

a wavelength conversion module (WCM), comprising:

a carrier having a first surface and a second surface opposite the first surface;

a first light-blocking layer disposed on the first surface and having a first opening;

a second light-blocking layer disposed on the second surface and having a second opening;

a filter layer disposed on the second surface and disposed in the second opening;

a wavelength conversion layer disposed on the filter layer; and

a protective layer disposed on the second light-blocking layer; and

a light-emitting module (LEM) disposed on the wavelength conversion module,

wherein a width of the second opening of the second light-blocking layer is greater than a width of the first opening of the first light-blocking layer.

2 . The wavelength conversion device as claimed in claim 1 , wherein a portion of a side surface of the wavelength conversion layer is a curved side surface.

3 . The wavelength conversion device as claimed in claim 1 , wherein a side surface of the wavelength conversion layer is in contact with the protective layer.

4 . The wavelength conversion device as claimed in claim 1 , wherein the wavelength conversion layer has a convex portion, and the protective layer has a concave portion corresponding to the convex portion.

5 . The wavelength conversion device as claimed in claim 1 , wherein the protective layer comprises a reflective material.

6 . The wavelength conversion device as claimed in claim 1 , wherein the wavelength conversion module further comprises:

a third light-blocking layer disposed on the second light-blocking layer.

7 . The wavelength conversion device as claimed in claim 6 , wherein the third light-blocking layer comprises a black photoresist material or a white photoresist material.

8 . The wavelength conversion device as claimed in claim 6 , wherein the wavelength conversion layer is in contact with the third light-blocking layer and the second light-blocking layer.

9 . The wavelength conversion device as claimed in claim 6 , wherein the third light-blocking layer has a third opening, and a width of the third opening of the third light-blocking layer is smaller than the width of the second opening of the second light-blocking layer.

10 . The wavelength conversion device as claimed in claim 1 , wherein the light-emitting module further comprises:

a substrate; and

a light-emitting element disposed on the substrate, wherein the wavelength conversion layer is disposed between the light-emitting element and the filter layer.

11 . The wavelength conversion device as claimed in claim 10 , wherein the second light-blocking layer is disposed between the substrate and the carrier, and the carrier is disposed between the second light-blocking layer and the first light-blocking layer.

12 . The wavelength conversion device as claimed in claim 10 , wherein a top surface of the wavelength conversion layer is flush with a surface of the light-emitting element.

13 . The wavelength conversion device as claimed in claim 10 , wherein the light-emitting element comprises a blue micro light-emitting diode, an ultraviolet micro light-emitting diode, or a combination thereof.

14 . The wavelength conversion device as claimed in claim 1 , wherein a projection of the second light-blocking layer on the carrier is located within a projection of the first light-blocking layer on the carrier.

15 . A method for manufacturing a wavelength conversion device, comprising:

providing a carrier having a first surface and a second surface opposite the first surface;

forming a first light-blocking layer on the first surface, wherein the first light-blocking layer has a first opening;

forming a second light-blocking layer on the second surface, wherein the second light-blocking layer has a second opening;

forming a filter layer on the second surface and in the second opening;

forming a wavelength conversion layer on the filter layer;

forming a protective layer on the second light-blocking layer; and

providing a light-emitting module (LEM) on the wavelength conversion layer,

wherein, a width of the second opening of the second light-blocking layer is greater than a width of the first opening of the first light-blocking layer.

16 . The manufacturing method as claimed in claim 15 , wherein the step of forming the wavelength conversion layer on the filter layer further comprises:

micro-jetting a material of the wavelength conversion layer on the filter layer; and

curing the material of the wavelength conversion layer to form the wavelength conversion layer.

17 . The manufacturing method as claimed in claim 15 , further comprises:

forming a third light-blocking layer on the second light-blocking layer, wherein the third light-blocking layer has a third opening.

18 . The manufacturing method as claimed in claim 17 , wherein the step of forming the wavelength conversion layer on the filter layer further comprises:

micro-jetting a material of the wavelength conversion layer on the filter layer and in the third opening of the third light-blocking layer; and

curing the material of the wavelength conversion layer to form the wavelength conversion layer.

19 . The manufacturing method as claimed in claim 15 , wherein providing the light-emitting module on the wavelength conversion layer further comprises:

providing a substrate;

forming a light-emitting element on the substrate to form the light-emitting module; and

bonding the light-emitting element of the light-emitting module and the wavelength conversion layer, so that the light-emitting element is located between the substrate and the wavelength conversion layer.

20 . The manufacturing method as claimed in claim 15 , wherein the step of forming the filter layer on the second surface and in the second opening further comprises:

coating a material of the filter layer on the second surface and in the second opening; and

curing the material of the filter layer to form the filter layer.